On the Implementation of the OSEK/VDX Operating System on Advanced Microcontrollers

In our days microcontrollers are widely used in more and more domains. One of the most important application fields is the automotive one. Because of the great number of microcontrollers included in an automobile and the complexity of tasks they must execute real time operating systems must be implemented. The implementation of the OSEK/VDX operating system on the ADuC703x microcontrollers is described in this paper. ADuC703x are advanced microcontrollers with an ARM7TDMI core, internal RAM and Flash memories and various peripherals on the chip. It was developed targeting the automotive applications. C language was used for implementing the operating system. Hardware dependent sections were written in assembly language as separate modules or included in C ones. The platform Keil ARM was used (compiler, assembler, link editor). The environment which integrated these tools was Keil muVision Integrated Development Environment. No other implementations of the OSEK/VDX operating system on the above mentioned for microcontrollers were found.